相关疑难解决方法(0)

我一直在努力在Android上制作自定义相机活动,但是当旋转相机时,表面视图的纵横比会变得混乱.

在我的oncreate活动中,我设置了framelayout,它保存了显示摄像机参数的表面视图.

//FrameLayout that will hold the camera preview
        FrameLayout previewHolder = (FrameLayout) findViewById(R.id.camerapreview);

        //Setting camera's preview size to the best preview size
        Size optimalSize = null;
        camera = getCameraInstance();
        double aspectRatio = 0;
        if(camera != null){
            //Setting the camera's aspect ratio
            Camera.Parameters parameters = camera.getParameters();
            List<Size> sizes = parameters.getSupportedPreviewSizes();
            optimalSize = CameraPreview.getOptimalPreviewSize(sizes, getResources().getDisplayMetrics().widthPixels, getResources().getDisplayMetrics().heightPixels);
            aspectRatio = (float)optimalSize.width/optimalSize.height;
        }

        if(optimalSize!= null){
            RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(LayoutParams.MATCH_PARENT, (int)(getResources().getDisplayMetrics().widthPixels*aspectRatio));
            previewHolder.setLayoutParams(params);
            LayoutParams surfaceParams = new LayoutParams(LayoutParams.MATCH_PARENT, (int)(getResources().getDisplayMetrics().widthPixels*aspectRatio));
            cameraPreview.setLayoutParams(surfaceParams);

        }

        cameraPreview.setCamera(camera);

        //Adding the preview …

我经历了几乎所有的stackoverflow答案,但我相信我的问题有点不同,图像质量并不像在某些问题中那么糟糕.但是当你看到图像时,你可以看到曲线.它不是平滑的图像.

这是我的参数设置代码.

Camera.Parameters params=mCamera.getParameters();

List<Camera.Size> sizes = params.getSupportedPictureSizes();
Camera.Size size = sizes.get(0);
//Camera.Size size1 = sizes.get(0);
for(int i=0;i<sizes.size();i++)
{

    if(sizes.get(i).width > size.width)
        size = sizes.get(i);


}

//System.out.println(size.width + "mm" + size.height);
params.setPictureSize(size.width, size.height);
params.setFlashMode(Camera.Parameters.FLASH_MODE_AUTO);
params.setFocusMode(Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE);
params.setSceneMode(Camera.Parameters.SCENE_MODE_AUTO);
params.setWhiteBalance(Camera.Parameters.WHITE_BALANCE_AUTO);
params.setExposureCompensation(0);
params.setPictureFormat(ImageFormat.JPEG);
params.setJpegQuality(10);
params.setRotation(90);


mCamera.setParameters(params);

我在用 mCamera.takePicture(null, null, mPicture);

我正在开发一个Android应用程序,它将图像从相机或设备照片库上传到远程站点.后者我工作正常,我可以选择并上传.但是,我无法拍摄完整尺寸的图片并上传.这是我的代码:

// From onCreate
Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(cameraIntent, CAMERA_PIC_REQUEST);

我有一个方法来处理Activity结果.这两个都处理从图库和相机中选择:

public void onActivityResult(int requestCode, int resultCode, Intent data) {

  String filepath = ""; 
  Uri selectedImageUri;

  if (resultCode == RESULT_OK) {
    if (requestCode == CAMERA_PIC_REQUEST) {
      Bitmap photo = (Bitmap) data.getExtras().get("data");
      // Gets real path of image so it can be uploaded
      selectedImageUri = getImageUri(getApplicationContext(), photo);
    }
    else {
      selectedImageUri = data.getData();
    }
    // Handle the upload ...
  }
}

public Uri getImageUri(Context inContext, Bitmap inImage) {
  String path …